Platform Testing｜Software Testing｜QA Services

Is your software operating “Chanto” across diverse environments?

Providing software across diverse environments requires broad coverage of devices, operating systems, and browsers, which is essential for ensuring high user satisfaction.

Are environment‑dependent defects degrading user experience and leading to missed business opportunities?

Our Platform Testing (Multi‑Device, Multi‑OS, Multi‑Browser Testing) leverages our test centers in Yokohama, Fukuoka, and Da Nang, equipped with smartphones, tablets, and PCs across numerous OS versions. By executing tests under diverse environments, we enhance coverage, improve user experience, and support the expansion of your market.

Why Choose Us
Our Services
Our Process

Why Clients Choose Us

Domestic and International Test Centers (Yokohama / Fukuoka / Da Nang)

Hybrid Delivery Model Enabling High Quality, Low Cost, and Short Lead Times
With Japan‑standard security and direct Japanese communication, our teams operate under a unified and rigorous management framework across all locations. Our test center in Da Nang, Vietnam, is also certified under ISMS (Information Security Management System), ensuring consistent and stringent security controls both domestically and internationally. The test center in Da Nang is staffed with numerous engineers fluent in Japanese, allowing for direct technical discussions without the “telephone game” delays often associated with offshore development.

Extensive Testing Environments

Exceptional Device Lineup Including Overseas‑Market Models
In addition to major models distributed in Japan, we flexibly procure and test global devices and overseas‑market models that are difficult to obtain domestically, leveraging the network of our Da Nang test center. Compatibility testing for products targeting international markets is conducted reliably using real devices.

ISTQB Partner

World‑Class Testing Techniques Through a Global Framework
As a partner of ISTQB, the International Software Testing Qualifications Board, we apply advanced testing methodologies across all of our locations. Even when teams are geographically distributed, every phase of the testing process, including design, execution, and reporting, is unified under globally recognized standards, ensuring consistently high‑quality test results.

Extensive Experience and Broad Domain Knowledge

Minimizing Risk Through Deep Industry Expertise and a Global Perspective
Drawing on insights gained from testing across a wide range of industries, we have a thorough understanding of the unique behaviors associated with specific operating systems and browsers. With domain knowledge that accounts for both Japan‑specific business practices and overseas usage environments, we prevent post‑release issues before they occur.

Service Overview

As an IV&V company, we cover the full lifecycle of testing—from test planning and analysis to design, implementation, and execution.

1. Test Planning and Design
We conduct detailed interviews to understand your product strategy and, drawing on our extensive experience, select the optimal combination of devices (iPhone, iPad, Android smartphones), operating systems (Windows, macOS, iOS, Android), and browsers (Chrome, Firefox, Safari, Edge) for comprehensive cross‑platform testing. We also design test cases to maximize test coverage, prepare test data, and support the setup of test environments.

2. Test Execution
We execute the designed test cases across a wide range of devices, operating systems, and browsers. Our experienced engineers thoroughly validate the product under diverse environments to uncover potential issues and ensure reliable quality.

3. Defect Reporting and Analysis
We document all defects identified during testing, including detailed conditions, reproduction steps, and deviations from expected behavior. When needed, we also support root cause analysis and help identify the areas requiring fixes.

4. Test Result Reporting and Improvement Recommendations
We provide a comprehensive report summarizing the overall test results, defect trend analysis, and actionable recommendations for future quality improvements. Our findings contribute to strengthening your quality management practices.

Ensuring Consistent Behavior and Stable Quality Across All Environments

Issues such as layout inconsistencies or nonfunctional features that may occur on specific browsers, operating systems, or devices can directly lead to user drop-off. By thoroughly testing combinations of major browsers (Chrome, Firefox, Safari, Edge), operating systems (Windows, macOS, iOS, Android), and a wide variety of devices, we ensure that your software behaves as expected in any environment, providing users with a seamless and stress‑free experience.

Enhancing User Satisfaction Through a Unified Experience

Issues such as inconsistent user interfaces or variations in usability across different environments can confuse users and cause them to abandon the service. We rigorously check UI/UX consistency in each environment to ensure uniform operability and a high‑quality user experience. This enables users to enjoy the same smooth and intuitive experience regardless of how they access your service, significantly improving overall customer satisfaction.

Maximizing Your Market Reach

If your service cannot operate properly in the environments commonly used by certain user segments, valuable business opportunities may be lost. By ensuring reliable operation across a wide range of environments, our service enables you to reach a broader pool of potential customers. This ultimately increases your user base and strongly supports the growth of your business.

Our Process

①

Quality Assessment and Consultation

• Understanding the target service
• Identifying quality issues
• Proposing solutions to address quality issues

Output:
• Quality improvement proposal

②

Test Planning

• Clarifying test objectives
• Defining the test approach
• Updating the test plan
• Considering test automation

Output:
• Test plan

③

Monitoring and Control

• Collecting metrics
• Tracking progress
• Controlling the overall test process

④

Test Analysis

• Analyzing the test object based on the test basis
• Extracting and defining test conditions

Output:
• Test design specification

⑤

Test Design

• Applying test techniques (Equivalence Partitioning, Boundary Value Analysis, Decision Table Testing, Pairwise Testing, State Transition Testing, Orthogonal Arrays Testing, etc.)
• Designing the test architecture
• Creating detailed test designs

Output:
• Test specification

⑥

Test Implementation

• Creating test cases
• Creating test procedures
• Creating test suites
• Setting up the test environment

Outputs:
• Test cases
• Test procedures

⑦

Test Execution

• Executing tests
• Verifying fixes

Outputs:
• Test logs
• Incident reports (critical incidents are reported immediately)
• Progress reports

⑧

Test Completion

• Reporting test results

Outputs:
• Test summary report
• Quality improvement proposal

Staying Ahead of the Latest QA Trends

We regularly host Ques, a specialized event for QA engineers, to stay updated on the latest QA trends from various companies and continuously enhance our skills and services.